On Thu, Apr 11, 2013 at 02:35:34PM -0500, Seth Jennings wrote: > Not a requirement: > > Compaction - compaction would basically involve creating a virtual address > space of sorts, which zsmalloc is capable of through its API with handles, > not pointer. However, as Dan points out this requires a structure the maintain > the mappings and adds to complexity. Additionally, the need for compaction > diminishes as the allocations are short-lived with frontswap backends doing > writeback and cleancache backends shrinking. Of course I say this, but for zram, this can be important as the allocations can't be moved out of memory and, therefore, are long lived. I was speaking from the zswap perspective. Thanks, Seth -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>